Type-writing machine.



J. A. RONCHEYTL TYPE wmme MACHINE.

wmcmcu mm mm, 1908. I 1,163 95?5u Patented Dec. 14, 1915.

4 SHEETS-SHEET 1.

WITNESSES I J 1 v yi rvgg Q INVENTOE' I J. A. RONCHETTI.

TYPE WRITING MACHINE.

APPLICATION FILED MAY9, 190B.

1 $63,955.. Patented Dec. 14, 1915.

4 SHEETSSHEET 2.

Figjl M WITNESSES 5 v nvvnvmn d. AWQQMM' ATTORNEYS I. A. RONCHETTE.

TYPE WRITING MACHINE.

APPLICATION FlLEDvBiAY 9. 190a.

4 SHEETSSHEE T 3.

48 0 win/ifs?) l\ ET q M, a v Y J. A. RONCHETTL TYPE RITING MACHINE. APPLICATION FILED MAY 9, I908 Patented Dec. 14, 1915.

4 SHETSSHEET 4.

( lN VE/VTOH ATTORNEYS,

UNITED saver PATENT OFFICE.

JOSEPH A. RONCHETTI, OF 'WOONSDCKET. RHODE ISLAND, ASSIGNOR, BY MESNE ASSIGNMENTS,- TO THE NOISELESS TYPEWRITER COMPANY, OF MIDDLETOWN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

TYPE-WRITIllIG MACHINE.

Specification of Letters Patent.

Patented Dec. 14, 1915.

Application filed May 9, 1908. Serial No. 431,856.

T 0 all "whom it may concern:

Be it known that l, .losnrn A. llostmrrrr, a subject of the King of Italy. residing at \Yoonsocket. in the county of Providence and State of Rhode island. have invented certain new and useful Improvements in 'lyyw-ll'riting lvlachines, of which the following is a -full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates broadly to type writing machines, and more particularly to amachine of a type which isdesigned to effect writing without producing noise.

In typewriting machines as hitherto con structed a large part of the noise produced during the operation thereofhas been ,produced by clicking parts oi the escapement mechanism and one of theolijccts of my invention is to overcome this objection and to render the operation ofthe escapement mechanism of thetypewriting machinesubstantially noiseless. I p v Another object of the'inve tion is to provide in'iprovect means format eating the vibratory dog-carrier.wherebydhe feed of the carriage is quickened.

Another object is to'proiide improved means for arresting the vibiaitory movements of the dog carrier, and also to provide improved means for eifectnig admstment ot the various parts of the escapement mechanism of a typewriting machine.

Other-objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly consists in the features of construction, combinations of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the application of which will be indicated in the following claims.

In the accompanying drawings. wherein is illustrated several of various pbssible embodiments of my invention, Figure 1 is a plan view of a preferred embodiment of the escapement mechanism. Fig. 2 is a side view thereof. Figs. 3 and 4 respectively show, in

1 and 2, certain parts being removed in order to more clearly disclose these parts. Fig. 6 is a side elevation of the parts shown in Fig. Fig. '7 is a view taken substantially on line 77 of Fig. 5, looking in the direction of the arrows. Figs. 8, 9 and 10 respectively, show the parts illustrated in Figs. 5, (5 and 7, but in a different position, the vibratory rocker member having been rocked sidewise as when the universal-bar has been depressed and the loose dog having thereby been disengaged from the escapenient wheel. Figs. 11, 12 and 13 show theparts of Figs. 5, 6 and 7, the loose or escapement dog having been moved away from the fixed'or detaining dog by a reverse rotationof the escapement wheel as when the carriage has been back spaced. Figs. 1-1 and 1 -5 show.the

vibratory rocker member and associated vibratory dog carrier. Fig-16 is-a side ele.

vation of the mechanism illustrated in Figs. let and 15. Figs. 17 and 18 show another embodiment of my invention. Figs. 19 and '20 show views of the parts illustrated in Figs-17 and 18 but in another position. Fi 21 1s a view 1n elevation of the mechanism illustrated in Fig. 19, and Fig. 22 shows the fixed dog employed in the embodiments illustrated in Figs. 17 to 21 inclusive.

Similar reference characters refer to similar parts throughout the several views of the drawings. v

Referring now to the drawings, and particnlarly to the embodiment illustrated in Figs. 1 to 12 inclusive, 1 represents a portion of the frame of the machine. which supports,

by means of lugs 2, pivot screws 3 upon wlnch osclllates the vibratory rocker member 4. This rocker member carries the fixed or detaining dog 5 and a looselymounted or floating feed dog 6, the former of which,at its rearf portion, is attached to the rocker member by means of a pivot screw 7, said dog near its opposite end being provided with an aperture 8 which receives a flanged eccentric bushing 10 through which extends a clamp screw 11, the flange 12 of the bushing being formed in the present instance hexagonal, so that itmay be readily rotated,

the rotation thereof ope ating to adjust the position of dog 5 upon the rocker member, where it may be held in position after-ad justment by means of the clamp screw 11 and the pivot screw 7.

The vibratory rocker member 4 is provided with a pair of fixed abutments which are constituted by posts 13 and 14 upon which may be lnounted, if desired, rollers or bushings, at 15 and 16 respectively. The feeddog 6 is located between. posts 13 and 14 as clearly shown in F 5, 8 and 11 of the drawings, and is held or confined be tween said posts bymeans of a cap or anchor member 17, which is secured upon the rocker member by means of post 1- the head 18 of which clamps it against bushing 16, the construction of the parts being such that the cap may be adjusted,for a purpose which will be hereinafter understood.

The feed dog 6 is provided near its forward end with a cam surface 19 which en gages with the post 13 or roller 15 located thereon, and said dog near. its rear end is provided with a curved cam surface 20 which engages with the bushing 16, mounted upon post 14. The cam surface '19 is struck upon an arc of larger radius than that of the roller 15 with. which it engages, and the curved cam surface 20 is also preferably struck upon an erect larger radius than that of the bushing 16, although, if desired,

the curved surface 20 may be omitted as will hereinafter appear.

Between the end 21 of the feed dog and a tail pierje of cap 17 isextcnded a retractil'e spring 23. This spring holds the curved surface 20 of the feed-dog against the post or bushing 16 in whatever position the dog assumes, and likewise maintains the cam surface 19 of the dog in constant engagement with the roller 15, as will readily be understood. The relation of the cam surfaces 19 and 20 of the feed-dog to posts 13 and 14-, constituting what may be termed roller cam means, is such that when the dog is released from the'escapement wheel the spring 23 pulls the dog inwardly until the same is ar rested and held in the position shown in 8, 9 and 10 of the drawings, in which position said dog will be in position to en "gage with another tooth of the esca'pement wheel, the fixed or detaining dog 5 holding the escapement wheel against rotation as will be understood. The pull or stress exerted 'by the spring 23 against the loose dog and the'direction of the exertion thereof may be readily-changed by an adjustment of cap late 17. he dogs 5 and 6 cotiperate to space a circular rack or escapement wheel 24 which I may be operatively connected with the car- This rock shaft 3 5, said shaft being actuated by means of arms. one of which is shown at 34, through a connection with the'universal bar which in turn is operated by the key levers. astened. to one side of the forked rod 30 is a forked spring 37 the forked portion 36 0tv which likewise. straddles collar 27 and on r gages one of the. flanges thereof, thereby forcing the forked portion of rod 30 into frictional engagement with the other flange of the collar. .in adjusting screw 37 extends through the spring 353 and into an opening provided in rod 36, the function of which. is to modify the tension of the spring so that the frictional engagement of the forked portion of said rod and said spring with the flanges of collar :27 may .be .regulated. The construction just described insures that the rocker member 4 will be oscillated. at the beginning of, the stroke of the univrafsal bar upon both the forward and return stroke, but permits the universal bar to continue its stroke in either direction after the movement of said rocker member has been arrested, by reason of the frictional actuating connection provided between arm and the link or rod 30. The vibratory movements of the rocker member -i-in this embodiment of my invention are arrested by a pair iii-"oppositely disposed stops or abutments 3S and 410 respectively, which engage the free and preferably the forked end of a resilient spring arm 4L1 Figs. 1 and 2 w 'ch extends from said rocker member. Stop is a member which is threaded into apor tion of the framing of the machine so as to be adjustable therein and may be held inany desired position by means of a. lock nut 42, and stop 16 a headed stem which is threaded in an opening in member 38, and

which extends entirely through as clearly shown in Fig. 2, and this stem after adjustment may be held in fixed position by means of a lock nut- 13. It will, therefore, be seen that the ab'utments 38 and 40 may be adjusted together, and that abutment -10 may also be adjusted independently of abutment 38.

In the embodiment of the invention disclosed in Figs. 1a, 15 and 16, all the parts are of similar construction, with the exception of the loose dog 6, which is not provided with the curved surface such as shown at 20 in the embodiment above described. In the present instance, this dog is provided with a fiat am surface 14 which engages the roller or bushing 16, thoaooil .is also modified. the same bein .,clamp the dog firmly to the rum spring 23 (indicated by -a straight line) being stretched between points and 46. The spring; 23 in this embodiment is omitted in the interest of clearness of illustration.

the dog rocker comprises a rigid arm 4? wl'iioh e.;tends tom the rocker member and whieh works between and engages the two pointed stop screws 48 and 50.

In the embodiment of the invention disclosed in Figs. 17 to 21 inclusive. the outer extensionof the 1O('l(61 member l is pro videdwith a curved (ram portion 51 with which a roller journaled upon an ear of the loose dog (3 engages. The loose dog 6 at its opposite end is provided with a cam portion 514-. which hooks over and bears against the bushing 16 on the roelrer. The plate 17 is placed above the loose dog 6 al- Eowing the same to slide freely below it.

lie retraetile springeonneets a pin 5 fast nponthe loose. dog with a similar pin .5? provided upon the plate 1? and exerts such pressure upon the loose dog as will eause the latter to follow the curve of the eam Stand maintain the :am portion 5 in engagementwith bushing ill of post H whenever tl e loose dog released. from a tooth of the escapement wheel, as shi'iwn in Fig. It will be seen that this construetion to a large extent. a reversal of the parts of the eseapeinent i'nei'thanism above glesrribed. in this enihodin'ient of the. invention the adjustment of the fixed dog ad stable by means of an adjusting serew 5 zipped into the rocker member. the head it screw bearing against the dog 5 which is slotted'to allow the elampserew 0 to g through it. This clamp screw serves to r 4 after adiustment.

-Havin" thus described the eonstruetion of the several embodiments of my invention. the operation thereol may now he an gages therewith,

(lerstood. Assuming that. a tooth of the oscapement wheel is in engagement with the loose or floating dog 6. said dog will be pressed thereby into alinement with the fixed dog 5. in this position of the parts "the loose dog has been slid outwardly and the cam suri'aee i has moved upon the .roller of post 13. and at the same time the curve bushing ill. spring being extended. When, however. the vibrator roelver memher 4 is vibrated through its eonneetion with the universal rock shaft, the-movable dog is disengaged from the teeth oi the escaoement wheel and the fixed or detaining dog enwliereunon' spring 52f, moves the loose dog inwardly, theouter end .rl'aee 20 has moved upon the moving in 'o engage the oncoming tooth of the esi-ag nt wheel. l urii the, return movement oi the rocker member. the. loose dog is again engaged with the escapement wheel and moved therein again into alinement with the fixed dog. the ram portions oi the loose dog being so dispensed with respect to the fixed ahutments onstituted by posts 1; and Ill that the e. penien't wheel will be arrested when the doors are. in alinement. and. inasmueh as surh arresting operation is eileeted without impaetor eoneussion. oi the moving parts no noise whatever will be produeed. nor will any noise be produced when the loose dog freed from the eseapen'ieni' wheel and moved to its intermediate position. shown in Fig. to engage the oneon'iing teeth of the oszapement wheel. It is thus seen that. the roller cam means silently arrests the movement 01? the floating dog in both direetions. \Vhen it is desired to l):i(l( spaee the earriage the loose dog ti will be moved hv he reverse rotation of the eseapement wheel and against the tension spring 2 to sueh position as will enable it to clear the teeth of said esoapement wheel, as shown in Fig. 11 of the drawings.

The operation at the 'meehanism dis closed in the other en'ihodiments oi the in-. vention is quite similar to that last. above described and should be readilv understood without further deseription, it being evident. of course. that the limiting dog. in

eaeh instanee. arrested in its intermeiiliate position or in its position in alineinent with the fixed dog without impact or' concussion,

removed ironi t by merely disengaging the spring by means oi whieh it is attarheil to the adjustable anehor or rap. and the tension or the direction of the stress exerted l'i v this spring may be easily changed h an adjustment ot the eap. it will be obvious that the lIIlIOID'IMllate position oi the feed-fog will be determined hy the direetion of th stress e7 er d by this spring. that. inasmueh as no impael or eoneussion oi movable parts takes plaee in the eseapeinent meehanism no noise can he produced, and yet the parts will be positively and accurately arrested in the proper positions.

The resilient stop arm tirovideda pon the rocker member, which engages the adjust- It will also be observed in stroke of the nnirersai bar, 2'

55 claim as new and desire to able stops and also operates to arrest the vibratory movements of said rocker member in a silent manner, and the frictional aetu ating connection provided between the "5 rocker member and the universal rock shaft I Leresides in the fact that ail the parts may be readily adjusted and. new iiarts substituted for Worn ones without disturbing other ,parts of the mechanism.

As many changes could be made in. the above construction. and many apparei'itly widely different embodiments of this invention could be made Without departing from the scope thereof, it is intended that aiiiuatter contained in. the abore do 'iption or shown in the accon'ipanying drawings shall be interpreted as illustrative and not in a limiting sense, It is also to be i'uiderstood that the language used in the follow 1g claims 13 intended to cover all of the .-neric andspecifie features ofthe invention herein de scribed and ail statements of the scope of the invention, which, as a matter of bingua 'e, might be said to fail the ibetween.

I avi'ng described my invention what I secure by Letters Patent, is:

1. In a typewriting maehinefin combination, a member opted to be spiced, means 'for effecting the spacing? thereof compris- 40 ing a rocker member provided with a fixed dog, a iooselv aount dog engaging said member to he spaces, having normally 1. swingi mov rnent when said rocker men her is aetuatr-id, and means for guiding said loosely i' ounted. dog in its swinging movement on said rocker member adapted to gradually and siientiy arrest the same.

2. In a typewriting machine, the combination with. the part to spaeed, of escape merit mechanism therefor comprising avi- V bratory dog-holder, a detaining-dog fixed thereon, a swinging and endwise'inova-ble feedalog mounted thereon adapted to he engaged with said spaced part, and means earried b stid doe-holder "with which said feed dog is in constant engagement and which serves gradually and siiently to arrest the same when the said dog has been engaged with the part which is adapted to be spaced and moved thereby into alinement with the detaining-dog.

3. In an escapement mechanism, the con bination with. the part to be spaced, of spare ing means tl'iereit'or comprising a vibratory Y5 dog-carrying-member having a. detoiningdog thereon, a feed-dog mounted thereon and movable sidewise and endwise with respect thereto and. adapted when engaged with the member to be spaced to be moved thereby into alinelnent with the fixed-dog, and a pair of fixed members cooperating with said feed-dog adapted. to arrest its movement.

4-. In an escapelnent mechanism, the combination with the part to be spaced, of spacing means therefor comprising a vibratory dog-carrying member having a detaining dog fixed thereon, a feed dog mounted thereon and movable sidewise and endwise with. respect thereto and adapted when engaged with the member to be spaced to be moved thereby into alinement with the fixed. dog, and a pair of fixed niembe eoope'ating with the periphery of said feed dog to arrest a movement of the same when it has been moved into alinen ent with. the detaining do".

5. In an escapement mechanism, in combination, a member to be spaced, and spacing means tl iei'e for comprising a vibratory member hav'infg' a detaining-dog mounted thereon, an endwise and side-Wise movable feed-dog carried thereby and a iapted when engaged with the spaced men'iber during a. vibration. of said vibratory member to be moved by the former into aiineinent with the detainingdog, and a pair of members fixed upon said vibratory--men1ber and so disposed with respect to the feed-dog that the movement of the latter will be arrested.

8 In an eseapexnent mechanism, in combination, a, member adapted to be spaced, :1 vibratory dog-carrier provided with e fixed detainingdog and a swinging and endwise movable feed-dog, and means fixed upon said. dogma rier Whicl'fooiipe 1h said feeddog to arrest he hit been. engaged with the i moved thereby into alir with the detai'n'ing dog, the construction. 0,. s. teed-dog and its relation to said arrestiiiis; means heingz such that the movement of the iormer wili he graduaily and silently arrested,

7. Inan eseapement meehanism, in. court bination, a part to be spaced, a rocker mom box: carrying a. fixed dog and a loosely mounted, sidewise and endwise movable feed-dog, and a pair 01': abutments cooperating with said feed-dog to arrest movement of the latter, one of said parts being provided with a cam surface for gradually arresting themotion of the feed-dog.

8. In an escupement mechanism, the combination with the part to be spaced, of spacing means therefor comprising a vibratory dog-carrier, a fixed dog mounted thereon, a loosely-mounted, swinging and endwiae movable feed-dog carried thereby, fixed means carried by said d0g-earrier which mo'pemtes with said fendsdog to errant a movement mes es of the same, one of said parts being prodog carried thereby, a pair of fixedmembers --or,,p osts cooperating with said dog to arrest a movement of the same, one of 'shid parts a being provided with a: cam portion wherebv the movement of'the dog will be gradually arrested.

10. In an escapement mechanism, the combination of a. vibratory dog-carrier, a

loosely-mounted, endwise and sidewise movable feed-dog carried thereby, and provided with a cam surface, and means fixed upon said dog-carrier and cotiperating with the cam surface of said feed dog gradually to arrest a movement of the latter.

11. In an escape'ment mechanism, the com bination of a vlbratory dog holder, a feeddog loosely mounted thereon and having a plurality of cam portions, and m ans fixed upon said dog holder engaging one cam portion of said feed-dog and cooperating therewith g adually and silently arrest its movement.

12. Inan escapement mecha sm, the combination of a vibratory dog .irrier, a feeddog loosely mounted there p, a pair of fixed abutments located uponsaid dog carrier between Which the dog is positioned, one of said parts being provided with a cam portion and the other of said parts engaging therewith gradually and silently to arrest a movement of said feed-dog.

13. In an escapement mechanism, the combination of a vibratory dog, holder, a teeddog loosely mounted thereon and having oppositely disposed cam portions, and a pair of fixed abutments carried by said dog holder which coiiperate with said cam por tions and arrest a movement of said feeddog. I

14. In an escapement mechanism, the com bination with a member, to be'spaccd, of a vibratory dog-carrier, a loosely-mounted feed dog carried by said rocker member and provided with cam portions, a pair of fixed abutments upon said rocker member with Which said cam portions engage, and a spring connected with said teed-dog and adapted to position the same with respect to the spaced member.

15. In anescapement n'icchanism, the combination of a member adapted to be spaced, a rocker member, a teed-dog loosely mounted upon said rocker member, a pairof abutments upon said rocker member with which said feed-dog constantly engages, and a spring for positioning said feed-dog with respect to the member to be spaced, said abutmonts operating gradually and silently to arrcst the i'uovcmcnt of the iccd-dog when the same has been engaged with the member to be spaced.

10. In an escapemcnt mcchanism, the combination of a spaced member, a rocker membo' provided with a ixcd feed-dog, a iced-dog loosely mounted thereon and capable of occupying diil'crcnt positions, said fccdaiog being provided with a cam portion, a pair 0'! fixed abutmcnts mounted upon said rocker member, one of which engages said cam portion, said abutmcnts coiiperating to arrest a moven'icnt of the feed-dog in one direction, and a spring connected with said teed-dog and tending, in conjunction with said aluitments, to urge said iced-dog toward an intermediate position.

17. in an oscapemcnt mechanism, the combination of a spaced member. a rocker member-provided with a iixcd detaining-dog, a loosely-mounted, oscillatory feed-dog carried by said rocker member, said feed-dog be ing provided with a plurality of cam portions, afplurality of abutments mounted upon said rocker member, each of which engages one of said cam portions, said abutments coo1' erating with said cam portions to arrest the movement of said feed-dog when the same is engaged with the spaced member and moved thereby into alinemcntwith a detaining do and a spring connected with said feed-dog and urging the same toward an intermediate position, said spring and said abutments coiiperating with said cam portions to: hold said feed-dog in such intermediate position.

18. In an escapemcnt,mcclianism, the combination of a rack adapted to be connected with the part to be spaced, a rocker member provided with a fixed detaining-dog, an endwise and sidewise movable iecddog carried by said rocker member, said food-dog being provided with a pair of oppositely disposed am portions one of which is located near either end thereof, a pair of abutments or posts mounted upon said rocker member, 'each of which engages one of the cam por tions of said rocker member, said posts'cooperating with said cam portions to arrest a movement oi said iced-dog when the same is engaged with said rack and has been moved thereby into alinemcnt with the fixed dog, and a spring connected with said food-dog and coiiperating with said abutmcnts to move the feed-dog to such position as will enable it to be engaged with the succeeding tooth of said rack.

19. In an escapcmcnt for typewriting machines, the combination with a vibratory rocker member, a iced-dog loosely mounted I feed dog is located, one of said ,artslbeing provided with a cam portion which is adapted to *be engaged by the other thereof, said abutmentscoiipe'rating with said feed dog to arrest a movement of the latter in one direcportions oiisaid feed dog and adapted to ar--' rest the same when it has been moved to such position, and a spring connected with said feed dog for positioning, the same with respect to said esoapement wheel when. it has been disengaged therefrom.

' 21. In anescapement tor typewriters, the

combination of a viluatory dog bolder can rying a fixed detaining-dog"and a movable,

' loosely-mounted feed-dog, a pair of posts be tween which said teething is located, a. cap for confining said teed-dog between said posts, and a spring extended between said feed dog and said cap.

22. In a typewriter machine. the Cambium tion of a vibratory dog-holder prrrxided with a fixed detaining-dog and a movable feeddog, a pfliro'f posts between which said teeth dog is located. a member fixed upon said dog-holder and adapted to confine said teeddog between said posts, a spring extended between said membe and said feed-dog and adapted to position the latter, and means for adjusting said last mentioned member to change the tension of said sprin t.

23. In an escapement for typewritingmm chines, the combination of a vibratory dog'- holder provided with a fixed detaining-dog and a looselysnounted. oscillatory teed-do", a pair of abutments between which said feeddog is located. said abutments operating to arrest a movement of said teed-dog in one direction and to permit a movement thereof in an opposite direction, and a spring con nested to said teed-dog: normally under tension and adapted to urge the same to movement toward an internnnliatc position.

In an eseapement "for typewriting machines. the combination of a vibratory dogholder carrying a. fixed dctainingbtlog' and a loosel-y-mounted. movable iced-dog provided with a plurality of oppositely disposed cam po tions. a plurality of abutments upon said dog: holder. each of which is ngagcd byone'of the cam portions of said ford-(logy. said abutments operating to arrratsaiid feeddog: when the same is moved in one direction but to 25. In an eseapement for typewriting ma- V chines, the combination, of a vibratory dogholder, a pair of spaced abutments, a feed dog positioned between said abutments and movable endwise and-sidewise with respect thereto. said feed-dog being; provided with cam surfaces adapted to engage said abutments, a spring connected with said feeddog and" holding the cam portions thereof in constant engagement with said abutments, said abutments being adapted to arrest said ieed-dog when the same is moved in one direction, said spring, constantly urging the same to movement in an opposite direction and cooperating with said abutments to arrest a movement thereof in an intermediate position. and means for changing the dispo sition of said spring with respect to said feeddo a 26. In an escapem'ent for typewriters, the combination of a vibratory dog-holder carrying a fixed detaining-dog and a movable feed-dog, and provided with a pair of spaced abutments between which said teed-dog is positioned, said feeddog being provided with a pair of oppositely disposed cam snrfaces which engage with said abutments, a

spring, connected with said feed-dog and holding the cam portlon thereof in engagement with sad abutments, a cap for confining said feed-dog between said alinltments.

said spring being extended between the feed 2 and holding said feed-dog between said abutments. a-spring extended between said feed dog and said cap, said feed dog when dotached from said spring being freely removable from between said abutments.

28. In an escapement for typewriting Ina-- chines, the combination of an cscapement wheel adapted to be operatively connected with the part to be spaced. :1. vibratory dog holder provided with a pair of abntn'ients, a feed-dog: loosely mounted upon said dogholder between said abutments adapted to be arrested by the latter when engaged with said escupement wheel and 10"6d thereby in one direction. said feedaiog being; inov in an pposite direction to clear the i. of the on apement wheel when the w the escapement wheel when mamas tation thereof reversed. and a spring con- .nccted with said feed dog tending always to urge the same toward an intermediate position.

29. In an esca-pement for typewriting machines. the cmnbination of an escapement wheel adapted to be connected to the part to be spaced. a dog holder, :1 detaining dog fixedly mounted thereon, a feed dog loosely mounted thereon. said escapement wheel and. said dog holder being relatively movable in a lateral direction whereby said dogsmay be alternately engaged with said escapenient wheel. a pair of spaced abutments located upon said dog holder and engaging portions of said feed dog. said abutments being adapted gradually to arrest a movement of said feed-dog when the same is 'engaged with said escapement wheel and moved thereby into alinement with said fixed dog, said feed-dog being adapted to be moved in an opposite direction to clear the teeth of the rotation thereof reversed. and a spring connected with said feed-dog and normal v under tension for moving said dog to an intermediate position and for holding the same in such position.

30. In an es apemcnt for typewriting machines. in combination. a member to be spaced. a moving part. a vibratory member provided with feed dogs which cooperate with said spaced member. and a frictional connection between said moving part and said vibratory member whereby one may continue its movement after the other has been arrested.

31. In an escapement mechanism. in combination, a member to bespaced, a dog holder adapted to vibrate in a plane at rightangles thereto, a fixed dog and a movable dog on said holder. and means for adjusting said fixed dog in a plane subslarn tially parallel with said member to be spaced.

32. In an escapement for typewriting machines. the combination of a vibratory mean ber provided with the feed-dogs and having an arm extending there-from, a collar carried by said arm, and a forked member fric tionally engaging said collar and connected.

with .the universal bar 33. In an escapement for bypewriting machines, the combination of a vibratory dogcarricr provided with an arm, a flanged col lar mounted upon said arm. a. link connected with the m'iiversal bar and having a forked portion which engages said collar. and spring means for holding the forked portion of said link and one. of the flanges of said collar in frictional engagement.

3i. In an escapement for typewriting ma chines, the combination of a vibratory dogcarrior provided with an arm, a collar mountednpon said arm, a universal rock shaft, a link having a fork which straddles said collar, a spring for forcing the forked portion against one of the flanges of said collar, and a arm connecting the opposite end of said link with the, universal rock shaft.

In an escapem'cnt for typewriting machines, the combination of a vibratory car-- rier for the feed dogs having an arm tending therefrom, a flanged collar mounted upon said arm, and a forked rod frictionally' engaging said collar and connected with the universal rock shaft.

36. In an escapement for typewriting machines, the combination of a vibratory dogcarrier provided with an arm, a flanged wheel mounted upon said arm, an actuated rod connected with the universal rock shaft having a fork which straddles said collar a spring secured to said link having a fork which straddles said collar, the forked portion of said spring engaging oneof the flanges of said wheel and forcing the forked portion of said link against the other flange thereof whereby a frictional. connection is established between said link and said arm, and means for adjusting the tension of said spring.

3?. In an escapenient for typewriting machines, the combination of a vibratory memher which carries the feed dogs, said vibratory member being provided with an arm, a flanged wheel mounted upon the free end of said arm. a link connected with the universal rock shaft and having a forked portion which straddles said wheel and engages a tiange thereof. a spring carried by said link and having a forked portion interposed between the same and the other flange of said wheel whereby a frictional engagement is effected between said wheel and said link, and means for adjusting said spring wheroby the tension thereof may be varied.

38. In an escapement for typewriting machines, the combination f a vibratory dog carrier, and means for iimiting the vibratory movements thereof in opposite directions comprising a resilient arm extending from said dog carrier. and oppositely dis posed stops with which said arm engages.

In an escapement for typewriting machines, the combination of a vibratory dogcarrier, and-means for limiting the vibration thereof comprising a spring arm eX- tonding from said dog-carrier, and a pair of oppositely disposed stops with -which said arm engages when said dog carrier is vibrated.

40. In an escapement for typewriting machines, the combination of a vib'atory dog carrier and means for limiting the vibratory moveme ts thereof comprising a spring arm extending from said dog carrier, :1 pair of :tcr adjustment oppositely disposed stops between which said arm works when said dog carrier is vibrated, and means for adjusting said stops whereby the range of motion of said arm may be varied. i

all. In an escapement for typewriting mm chines, the comblnation of a rocker member which carries the feed-dogs, andineans for limitingthe range of motion of said rocker member comprising a pairof oppositely disposed stops adapted to be engagedby a. portion of said rocker member, means for ad justing said stops jointl and means for adjusting one thereof in ependently of the other, 4

42. A stop device for moving parts of a typewriting machine comprising, in combi nation, an abutment threaded in a fixed portion of the machine, and an oppositely disposed abutment having it, stem which is threaded in said first named abutment.

43. A stop for "ibrating ports of a typewriting machine, comprising a member threaded into n fixed portion of the framing of the machine, the free end of which forms an abutment with which the moving part engages, at headed member threaded into said first-mentioned member, forming oil-abutment for the moving part, means i'vherc-by aid firshmcntioned member be ndjnsted whereby the position, of of nbntments may he "cried, means nebv said bended member may be ted independently of the first, and means holding cosh of said members in position 44. In an escnpemcnt for typcwriting ma chines, the combination of :1 vibratory dogcarrier having an arm extending therefrom, the universal rock-shaft, a frictional activsting connection between said arm and said rocloshnft, and resilient means for limiting the vibrations of said dog-carrier.

$5. In an escapement for typewriting machines, the combination of :1 vibratory dogcarrier provided with a rigid actuated arm and a resilient stop arm, the universal rock shaft, a frictional connection between said universal rock shaft and the dog carrier, and means engaging said resilient stop arm for holding said rocker member stationary during portions of the movements of said universal rock shaft.

In an escnpement for typewriting ma chines, the combination of a dog carrier. :1 fixed and a movable dog'monnted thereon, an eccentric for adjusting the fixed dog with respect to the movable dog, and means for holding said dog in fixed position after adjustment.

47. In an. cscapcrnent for tvpewriting muchines, in cmnbinntion, :1 dog-holder pro vided with a fixed end a movable (log, eccentttic means for adinsting said fined dog and pivoted said bend i-iscnpement, in combination, a at fixed-dog mounted thereon at its rear end to said holder, means for swinging the opposite end of said dog whereby the some may be adjusted,

and means for holding the same in fixed position after adjustment.

49. In a typewriting machine, in combination, a rocker member 'ednpted to carry fixed and. movable feed-dogs, av fixed dog mounted thereon and pivotnlly attached to said member at its rear end, an eccentrically mounted bnsi'iing for adjusting the opposite end of said dog, and means for clamping said dog in fixed position after adjustment.

. 50. In an escape-merit for typewriting mnchines, in combination, a. vibratory dogcarrier, at fixed-dog mounted thereon and pivotally attached thereto at its rear end, an eccentricnlly mounted bushing adapted to be received in an opening provided in the forward end of said dog, means for rotatin said bnshing wherclw the position of sai dog may be changed upon said dog carrier, and a clamp screw extending through said bushing. for clumping said dog in position after adjustment.

51. In on cscopement mechanism, the combination of :1. part to be spaced, a, feed dog coopernting therewith, and com means associated with said dog and adapted to arrest the n'ioi'emcnts thereof in both directions.

In an cscapement mechanism, the combination of it part to be spaced, :1 movable feed dog cooperating therewith, and rolling cum means associated ivith said (log and adapted to arrest the movements thereof in both directions.

In anercnpement mechanism, the combination of a part tobc spaced," movable feed dog coiiperating therewith, and spring actuated rolling cam means associated with said dog and adapted to arrest the movements thereof in both directions.

Incn escnpemcnt mechanism. the combination ofn member to be spaced, a rocker member, lined and movable dogs carried by therocker member. and. rolling cam means associated with said movable dog and adapted to arrest the movements thereof in both directions.

in no escnpement mechanism for typewriting; machines, the combination of 'a member to be spaced. spacing means therefor, comprising}: a vibratory dog holder, a movable feed dog carried thereby, one of said inst-mentioned elements being provided with o concave com path and the other with a rolling; cam engaging member, and spring means for maintaining said rolling ineaeaa chines, the combination of a member to be spaced, spacing means therefor comprising a vibratory dog holder, a fixed dog and a movable dog carried by said dog holder, and

a cap for holding said movable dog in proper positionduring its movement.

57. In an escapement mechanism, the combination of a member to be spaced, a vibratory dog carrier provided with a fixed detaining dog, and a movable feed dog having a cam surface, and means mounted upon said dog carrier which cooperates with said feed dog to arrest the latter when the same has been engaged with the spaced member and moved thereby into adjacency With the detaining dog, the construction of said feed dog and cam surface and their relation to said arresting means being such that the movement of the former will be gradually arrested Without impact or concussion.

58. In a typewriting machine, the combination of a member to be spaced, spacing means therefor, comprising a rocker member, a fixed detaining dog mounted thereon,

a movable feed dog carried thereby, said feed dog being provided with a cam portion,

and positioning means for said dog mounted upon said rocker member engaging said cam portion. I

In an escapement mechanism, the combination of a member adapted to be spaced,

a vibratory dog. carrier provided with a fixed detaining dog and av movable feed dog,

and means independent of said feed dog, but

engaging the same, adapted gradually to at rest a movement thereof in either direction.

60. In an escapement mechanism, the combination of 'a vibratory dog carrier, a feed dog looseiy mounted thereon, means for causing said dog to move in an arc upon said dog carrier, and cam means for determining the' extent of movement of said dog in either direction.

61. In the carriage escapement of a type Writing machine, the combination with an escapement rocker, of a fixed dog and a movable dog, one dog having an opening therein, and means for regulating the drop from one dog to the other comprising an eccentric part passing through said opening adapted to be rotatably adjusted to regulate the position of said dog.

62. In the carriage escapement of a type- Writing machine, the combination of a rocker member, a fixed dog and a movable dog mounted thereon, one of said dog's having an opening therein, and eccentric means associated With-the opening in said dog and rocker adapted to be rotatabiy adjusted to regulate the drop, from one dog to the other.

In testimonj whereof I ailix my signature, in the presence of two witnesses.

JUSEPH A. RONCHETTI.

Witnesses:

ARTHUR J. B. Henson, Ros? J. SOULER. 

